create_table

THE RISK

Medium Risk

Why create_table needs a policy

Creating a table is a Write operation—it creates a new database object that can be modified or dropped later. While schema changes have broader impact than row-level writes, the action is reversible (tables can be dropped). This is not Execute (no arbitrary code/command execution), not Destructive (the table can be removed), and not Financial.

From the tool's definition Tool name 'create_table' and description 'Create a new table in the database' indicate a data creation operation that modifies database schema reversibly.

Documented attack patterns abuse exactly the kind of access create_table gives an agent:

POLICY

How to control create_table

PolicyLayer is an MCP gateway — it sits between your AI agents and MCP-MongoDB-MySQL-Server, and nothing reaches the server without passing your rules. This is the rule we recommend for create_table:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_table": {
      "limits": [
        {
          "counter": "create_table_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

create_table stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register MCP-MongoDB-MySQL-Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More MCP-MongoDB-MySQL-Server tools

Destructive mongodb_delete Delete documents from a MongoDB collection Execute execute Execute an INSERT, UPDATE, or DELETE query Execute connect_mongodb Connect to MongoDB database using URL or config Write add_column Add a new column to existing table Write mongodb_create_collection Create a new collection in MongoDB Write mongodb_insert Insert documents into a MongoDB collection Write mongodb_update Update documents in a MongoDB collection Read describe_table Get table structure

All 14 MCP-MongoDB-MySQL-Server tools →

Write tools on other servers

M-Team MCP Server download_torrent YouTube MCP Server generate_video_title Android Forensics ADB MCP Server combine_reports 0xarchive web3_signup

Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Argument validation → Checking tool call arguments against schema and policy before they run.
Scoped token → Per-person credentials that grant a defined subset of servers and tools.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about create_table

What does the create_table tool do? +

Create a new table in the database. It is categorised as a Write tool in the MCP-MongoDB-MySQL-Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_table? +

Register the MCP-MongoDB-MySQL-Server MCP server in PolicyLayer and add a rule for create_table: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches MCP-MongoDB-MySQL-Server. Nothing to install.

What risk level is create_table? +

create_table is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_table? +

Yes. Add a rate_limit block to the create_table rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block create_table completely? +

Set action: deny in the PolicyLayer policy for create_table. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides create_table? +

create_table is provided by the MCP-MongoDB-MySQL-Server MCP server (yaoxiaolinglong/mcp-mongodb-mysql-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every MCP-MongoDB-MySQL-Server tool call.

Start from MCP-MongoDB-MySQL-Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →